Troubleshooting and routine maintenance
91
C
f Plug the machine’s power cord back into
the electrical socket first, and then
reconnect all cables. Turn on the
machine.
IMPORTANT
To avoid print quality problems, DO NOT
touch the shaded parts shown in the
illustrations below.
Cleaning the drum unit C
If you have print quality problems, clean the
drum unit as follows.
a Turn off the machine. Unplug the power
cord from the electrical socket.
b Open the front cover and slowly take out
the drum unit and toner cartridge
assembly.
IMPORTANT
• We recommend that you put the drum unit
and toner cartridge assembly on a clean,
flat surface with a sheet of disposable
paper or cloth underneath it in case you
accidentally spill or scatter toner.
• To prevent damage to the machine
caused by static electricity, DO NOT touch
the electrodes shown in the illustration.
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